Changeset 888 for pjproject/trunk/pjmedia/src/pjmedia/silencedet.c

Timestamp:

Jan 20, 2007 5:18:14 AM (17 years ago)

Author:

bennylp

Message:

Implement ticket #56: Periodically transmit RTP packet on silence, to maintain NAT binding etc.

File:

• pjproject/trunk/pjmedia/src/pjmedia/silencedet.c (modified) (3 diffs)

pjproject/trunk/pjmedia/src/pjmedia/silencedet.c

@@ -143 +143 @@
         min_signal = sd->ptime;
     if (recalc_time < 0)
-        recalc_time = 5000;
+        recalc_time = 2000;
 
     sd->min_signal_cnt = min_signal / sd->ptime;
@@ -257 +257 @@
             /* Adjust according to signal/silence proportions. */
             if (pct_signal > 95) {
-                new_threshold += (sd->weakest_signal - sd->cur_threshold)/4;
+                new_threshold += (sd->weakest_signal+1 - sd->cur_threshold)/2;
             } else if (pct_signal < 5) {
                 new_threshold = (sd->cur_threshold+sd->loudest_silence)/2+1;
-            } else if (pct_signal > 90) {
+            } else if (pct_signal > 80) {
                 new_threshold++;
             } else if (pct_signal < 10) {
@@ -269 +269 @@
 
             if (updated && sd->cur_threshold != new_threshold) {
+                PJ_LOG(5,(sd->objname, 
+                          "Vad cur_threshold updated %d-->%d. "
+                          "Signal lo=%d",
+                          sd->cur_threshold, new_threshold,
+                          sd->weakest_signal));
                 sd->cur_threshold = new_threshold;
-                PJ_LOG(5,(sd->objname, "Vad cur_threshold updated to %d",
-                          sd->cur_threshold));
             }
         }